Cutting-machine for plastic materials.



No. 776,476. PATENTED NOV. 29, 1904.

E. LOGAN.

CUTTING MACHINE FOR PLASTIC MATERIALS.

APPLIOATION FILED r1113 18.1904.

110 MODEL. 2 sums-8mm 1.

m I I v t I m win/8858.- INVENTOR rill/00d Logan ATTOHNEE PATENTED NOV.29, 1904.

E. LOGAN.

CUTTING MACHINE FOR PLASTIC MATERIALS.

APPLICATION FILED FEB.18. 1904.

2 SHEETS-SHEET 2.

N0 MODEL.

wunniuiuum INVENTOR Efiwoaallogan |BY W/TIVESSES:

ATTORNEYS NITE rates Patented November 29, 1904.

CUTTING-MACHINE FOR PLASTIC MATERIALS.

SPECIFICATION forming part of Letters Patent No. 776,476, dated November29, 1904.

Application filed February 18, 1904:. Serial No. 194,138. (No model.)

To all whom it may concern.-

Be it known that I, ERKWOOD LOGAN, a citi zen of the United States, anda resident of Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented a new and Improved Cutting-Machine forPlastic Materials, of which the following is a full, clear, and exactdescription.

My invention relates to machines for cutting disks or sections from asheet ofplastic material, and is particularly intended for cutting'biscuit, cakes, or crackers from a sheet of dough.

The object of my invention is to provide a machine which will cut anumber of disks simultaneously and deposit them in a suitable receptaclein one operation.

I further aim to produce a machine having a minimum number of operatingparts com pact in structure and which may be attached to any table orother suitable support.

An important feature of my invention consists in the use of a devicewhereby the usual rolling-board is dispensed with and the dough or otherplastic material is spread or rolled directly upon the die-plate. Iaccomplish this purpose by placing a slide under the dieplate to closethe openings therein and prevent the dough from being forcedtherethrough during the rolling process.

Another feature consists in the arrangement of the die-plate, slide, andreceptacle for the disks or biscuit in a frame which may drawn forwardupon the operating-table during the rolling process and afterward placedwithin the frame with the dies inalinement with the cutters, thuskeeping the separate parts of the machine assembled in their properrelation and ready to be brought under the cutters as soon as therolling process is completed.

My invention will be better understood by reference to the followingdescription'and accompanying drawings, forming a part of thisspecification, in which similar characters of reference indicatecorresponding parts in all the figures, while its scope will be pointedout in the appended claims.

Figure 1 is a perspective view of my machine, showing the parts mountedin operative relation upon a table. Fig. 2 is a horizontal section takenon the line 2 2 of Fig. 3. Fig. 3 is a, front elevation thereof, partlyin section. Fig. 4 is a sectional side elevation taken on the line 1 4.of Fig. 3 looking toward the left. Fig. 5 is an enlarged sectional viewon the line 5 5 of Fig. 4: looking toward the right. Fig. 6 is asectional side elevation of a modified form of the cutter; and Fig. 7 isa detail plan view, partly in horizontal section, showing a modificationin the construction of the operating-table.

1 is an operating-table having an extensionleaf 2, and 3 is a framehaving side members A and a top framebar 5. The side members are groovedor channeled at 6 to act as guides for rollers 7, secured to the bolsteror guiding-bar 8 of the cutter-head by means of angle-irons 9, carryingpivot-pins 10. An operating-handle 11 is secured to the bolster 8 by asocket connection 12 and is guided in a hole 13 in the top frame member5. Supported by the bolster 8 is a cutter head or plate 14:, havingdepending cutters 15. These cutters are provided with cutting edges 16and may have parallel sides 18, as in the form illustrated in Fig. 6. Inthis form I supply the cutter with a plunger 19, carried by a spring 20,mounted in the top of the cutter. The purpose of this spring is to expelthe disk after it has been out from the sheet of plastic material. Iprefer, however, to use the more simple form of cutter shown in Figs. 3,4:, and 5, in which the sides are tapering or flaring outwardly. When Iemploy this type of cutter, I provide the cutter-head with apertures 21for the escape of air during the cutting process and also that theair-pressure upon the upward movement of the cutter-head may expel thedisk in the manner clearly shown in Fig. 5.

Supported upon the table 1 is a frame 22, channeled at 23 to receive abase-plate 2 1 and slide 25. Secured to the base-plate 24 is a die-plate26, having apertures 27, which cooperate with the cutters 15 to cut thedisks 29 from the plastic sheet 30. The base-plate is provided withopenings 28, which register with the apertures in the die-plate, for apurposited in the receptacle 81.

pose to be presently explained, and with lugs or projections 17 toengage the ends of the side members of the frame 22. Fitting loosely inthe frame 22 and guided by the side members thereof is a receptacle 31,adapted to receive the disks as they are expelled from the cutters. Theslide 25 is provided with a finger-piece 32, whereby it may be adjustedas desired, and the bolster or guiding-bar 8 is connected with theframe-bar 5 by springs 33.

The operation of my machine will be clearly understood from theforegoing description. The parts being assembled as shown in Fig. 1, theframe 22 is drawn forward on the operating-table into the positionindicated in dotted lines in Fig. 4. The dough or other plastic materialis now placed on the die-plate and rolled into a sheet of the desiredthickness, the slide 25 under the base-plate 2st closing the openings 28therein and preventing the plastic material from being forcedtherethrough. The frame 22 may now be moved again into the positionshown in Fig. 1, bringing the apertures 27 into vertical alinement withthe cutters 15. After withdrawing the slide 25 by means of the handle 32the cutterhead 14 is forced downwardly by means of the handle oroperating-rod 11 until the cutters are brought into the positionindicated at the left in Fig. 5, causing the disks 29 to be cut from theplastic material 30 and de- In case the disks should adhere to the innerwall of the cutter they will be immediately expelled when thecutter-head begins to ascend by reason of the air rushing through theapertures 21. \Vhen the cutter illustrated in Fig. 6 is employed, thedisk will be expelled by the spring 20, acting upon the plunger 19. Assoon as the hand of the operator is removed from the handle 11 thecutter-head will be raised to its normal position by the retractilesprings 33. The receptacle may now be replaced by another and the slide25 returned to the position first described, when the operation may berepeated.

From the foregoing description it will be apparent that I have provideda machine which may be operated with great rapidity and which may bereadily secured to an ordinary operating-table. It has a minimum numberof operating parts which are simple in construction and are not liableto get out of order. I prefer to make the die plate and cutters oftinned sheet-iron, commonly known as tin, while the frame parts may beof wood or other material.

hile I have set forth and illustrated a particular arrangement ofmechanism to accomplish the purposes of my invention, 1 do not wish tobe restricted thereby, but aim to cover all modifications thereof whichmay be re garded as the equivalents of the structure described andshown. a

plate 14, said means consisting of a three sided relatively stationaryframe 50, beyond the ends 51 of which are blocks 52, while pivoted toparts of the supporting-framework are latches 53, which may be turneddown behind the blocks in a manner to project before the forward ends ofsaid frame 22, thus preventing the latter from being moved or withdrawnuntil said latches are turned outwardly, as is apparent.

Vhile I have illustrated and referred throughout to a slide 25, it willbe obvious that an endless apron could be substituted therefor withoutdeparting from the spirit of my invention.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. A machine for cutting disks from a sheet of plasticmaterial, comprising a base member for supporting said plastic sheet andprovided with openings, means for closing and exposing said openings,means for cutting disks from said plastic sheet, and means for expel- Iling said disks into said openings.

2. A machine for cutting disks from a sheet of plastic material,comprising a base member provided with openings, a die member thereonhaving apertures registering with said openings, means for closing andexposing said openings, means for cutting disks from said plastic sheet,and means for expelling said disks into said openings.

3. A machine for cutting disks from a sheetof plastic material,comprising a base member provided with openings, a die member thereonhaving apertures registering with said openings, means for closing andexposing said openings, a frame providing guideways and stops for saidbase and die members, means for cutting disks from said plastic sheet,and means for expelling said disks from said openings.

1. A machine for cutting plastic material, comprising a base having aframe secured thereto, a die-plate provided with apertures, a receptaclein operative relation with said dieplate, means for opening or closingsaid apertures, a manually-controlled cutter-head guided by said frameand having depending cutters adapted to move into said apertures, andretractile means for normally holding said cutter-head in an elevatedposition.

5. A machine for cutting plastic material, comprising a base having aframe secured thereto, a die-plate provided with apertures, a receptaclein operative relation with said dieplate, means for opening or closingsaid apertures, a manually-controlled cutter-head having anoperating-rod working in said frame and having depending cutters adaptedto move into said apertures, and retractile means for normally holdingsaid cutter-head in an elevated position.

6. In a machine for cutting dough or other plastic material, thecombination with a table or support, of a movable frame thereon, adieplate provided with apertures, a slide in movable relation with saiddie-plate, a receptacle supported by said table and guided by saidframe, and standards secured to said table and carrying cutters mountedto move into said apertures.

7. In a machine for cutting dough or other plastic material, thecombination with a table or support, of a movable frame thereon, adieplate provided with apertures, a slide in movable relation with saiddie-plate, a receptacle supported by said table and guided by saidframe, standards secured to said table and carrying cutters mounted tomove into said apertures, and a cutter-head having rollers engagingchannels in said standards.

8. In a machine for cutting dough or other plastic material, thecombination with a frame adapted to rest upon a table or other support,of a cutter mounted to reciprocate on said frame, a die-plate having anaperture in con centric alinement with said cutter, a slide arranged toclose said aperture, and a recepta cle in cooperative relation with saiddie-plate.

9. In a machine for cutting dough or other plastic material, thecombination with a frame adapted to rest upon a table or other support,of a cutter mounted to reciprocate on said frame and yieldinglysupported thereby, a dieplate having an aperture in concentric alinementwith said cutter, a slide arranged to close said aperture, and areceptacle in cooperative relation with said die-plate.

10. In a machine for cutting dough or other plastic material, thecombination with a frame adapted to rest upon a table or other support,of a cutter-head mounted to reciprocate on said frame and provided witha cutter, a dieplate having an aperture in concentric alinement withsaid cutter, a slide arranged to close said aperture, a receptacle incooperative relation with said die-plate, and a channeled frame movableon said table and having said slide and receptacle slidingly mountedthereon.

11. In a machine for cuttingdough or other plastic material, thecombination with a table or support having standards secured thereto, ofa reciprocating cutter plate or head guided in flanges on said standardsand having cutters or stamping members depending therefrom, a die-plateprovided with suitable apertures adapted to cooperate with said cutters,a base or bed plate supporting said die-plate and having openingsregistering with said apertures, a slide, a receptacle arranged to bemoved under said bed-plate, and a frame form ing a guide and support forsaid slide and bedplate.

12. Inamachine for cutting dough or other plastic material, thecombination with a table or support having standards secured thereto, ofa reciprocating cutter plate or head having cutters or stamping membersdepending therefrom, a die-plate provided with suitable aperturesadapted to cooperate with said outters, a base or bed plate supportingsaid dieplate and having openings registering with said apertures, aslide, a receptacle arranged to be moved under said bed-plate, and aframe forming a guide and support for said slide and bed-plate.

13. In a machine for cutting dough or the like, the combination withaframe, and a supporting-table, of a cutter mounted to Work in saidframe, a relatively stationary frame on the table, the same being openat one side, a slidable frame working therein, and means for engagingthe ends of the stationary frame to prevent movement of the slidableframe when iii operative position beneath the cutter.

14. In a machine for cutting dough or the like, the combination with aframe, and a supporting-table, of a cutter working in said frame, arelatively stationary frame on the table, a slidable frame workingtherein, and a pivoted latch for preventing movement of said latterframe in operative position beneath the cutter.

15. Inamachine for cutting dough or other plastic material, thecombination with a table or support having standards secured thereto, ofa reciprocating cutter plate or head having cutters or stamping membersdepending therefrom, a die-plate provided with suitable aperturesadapted to cooperate with said outters, and a base or bed platesupporting said die-plate and having openings registering with saidapertures.

16. In a machine for cutting dough or other plastic material, thecombination with a table or support having standards secured thereto, ofa cutter plate or head having cutters or stamping members dependingtherefrom, a die-plate provided with suitable apertures adapted tocooperate with said cutters, and a base or bed plate supporting saiddie-plates and having openings registering with said apertures.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

ERKWOOD LOGAN.

Witnesses:

WILLIAM E. BRADLEY, Jos. H. KLEIN.

